Hi all.
My new house has a swamp cooler with a Masterstat thermostat. The swamp cooler has the following settings.
- Fan speed - off/low/high
- Recirculating pump - off/on
- Purge pump - off/on
But the thermostat only has 3 wires behind it so I'm not understanding how each of these are controlled. Can someone explain how all these setting are controlled by just three wire?
This makes me feel better about the work I've done at my house
Uuug! Customer said previous homeowner was an engineer.
electricians